!7

cmodule WebCamDemo > DynPrintLog {
  !include #1029545 // API for Eleu
  
  O html(IWebRequest request) {
    //ret "URI: " + request.uri();
    ret hsansserif() + hfullcenter(p("WebCam Preview")
      + hfulltag video("", autoplay := true, id := "webcamPreview",
          style := "width: 600px; height: 400px; border: 5px solid red;")
      + p("Snapshot" + hbutton("Grab", onclick := "snapshot()")
      + hfulltag canvas("", id := "snapshotCanvas", style := "width: 300px; height: 200px; border: 3px solid green;")
    ) + hscript([[
        var video = document.querySelector("#webcamPreview");

        if (navigator.mediaDevices.getUserMedia) {
          navigator.mediaDevices.getUserMedia({ video: true })
            .then(function (stream) {
              video.srcObject = stream;
            })
            .catch(function (err0r) {
              console.log("Something went wrong: " + err0r);
            });
        };
        
        function snapshot() {
          var canvas = document.getElementById("snapshotCanvas");
          canvas.getContext("2d")
            .drawImage(video, 0, 0, canvas.width, canvas.height);
        }
      ]]);
  }
}